Home / 172,923.30-258,947.55-137,931.30

Finding the Fourth Proportional to 172,923.30, 258,947.55 and 137,931.30

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Solution

The fourth proportional to 172,923.30, 258,947.55 and 137,931.30 is: 206,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,923.30 : 258,947.55 = 137,931.30 : x
  2. Step 2: Convert to fraction form
    172,923.30/258,947.55 = 137,931.30/x
  3. Step 3: Cross multiply
    172,923.30x = 258,947.55 × 137,931.30
  4. Step 4: Simplify right side
    172,923.30x = 35,716,972,203.32
  5. Step 5: Solve for x
    x = 35,716,972,203.32/172,923.30
  6. Step 6: Final answer
    x = 206,548.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.